maeshman



(No Model.)

- L. S. BURRIDGE 8v N. R. M-ARSHMAN.

TYPE WRITING MACHINE.

N0. 315,386. Patented Apr. '7, 1885.

z IWL N. PETERS. Phummmgnialur, Wzlhngton. D. C.

fUNIT-ED STATES PATENT OFFICE.

LEE S. BURRIDGE AAND NEWMAN R. MARSHMAN, OF NEW YORK, N. Y.

TYPE-WRITING MACHINE.

SPECFICATION forming part of Letters Patent No. 315,386, dated April 7,1885.

Application filed March 22, 1884. (No model.)

.T0 all whom may concern,.-

Be it known that we, LEE S. BURRIDGE and NEWMAN R. MARSH-MAN, citizensof the United States, and residents of New York, in the county and Stateof N ewYork, have invented certain new and useful Improvements in Type-Writers, of which the following is a specification.

`The object of our invention is to provide an inexpensive and yetcomplete type-writer of but very few parts, not lia-ble to get out oforder, requiring for its operation as few movements as in the case ofexpensive machines now in use, and which will admit of printing a sheetof paper of any length without the necessity of coiling or folding thesame.

The invention consists in the combination,

with a stationary"letter-plate, of a type-plate fitted to slide parallelwith the said letterplate in hinged orfonly vertically-movable supports,a stylus rigid upon the said typeplate, an impressionsurface, and meansfor feeding the paper -the properV distance between the letters by thevertical movement of the type-plate.

lt also consists in the combination of a laterally-movable type-.platecarrying below its i type-surface a plate perforated opposite to t-hetype-face of each letter, and an ink-ribbon interposed between the typesurface and the said perforated plate, with a stationaryimpression-stud, and means for moving the paper over the said stud.

It also consists in the combination, with the letter-plate andtype-plate, of one or more supports, each consisting of a horizontal oroverhanging arm or reach having at one end the aforesaid plates, andsecured at its other end by a downward-projecting branch to thebed-plate or main support of the machine, as will be hereinafterdeseribedand claimed, with reference to the accompanying drawings, inwhich Figure l represents a top or plan view of our improvedtype-writer. Fig. 2 is a longitudinal vertical section of the same,taken on the line x .fr of Fig. l, as seen from the front. Fig.'3 is anend elevation of the same, seen in the direction of. arrow l in Fig. l.Fig.

4. is a detail cross-section of the letter-plate and type-plate, as seenin the direction of arrow l. Fig. 5 is a partial detail view, on a"larger scale than the previous figures, to illustrate the operation andarrangement of the type-plate, ink-ribbon, perforated plate, andimpression-stud.

printing contact.

Upon the edge (preferably the rear edge) of the base-plate A of themachine are secured the vertical or downward-bent portions b of twobracket-s or supports, B,to the free end s of whose horizontal oroverhanging arms b is attached a letter-plate, C; The letter-plate mayeither be secured to or formed in one` of two supports` only one may beused, the

length to allow of a free movement of the papart with the said supportsB, and in place reach or overhanging arm b' being of sufficient i perwithout coiling or winding in the same.

The letters and gures on the plate G are ar-` ranged in one continuousline, asshown 1n` Fig. 1,and opposite each letter and figure is adownward-tapering hole or socket, c,in which thepoint of the stylus isinserted when it is desired to bring into alignment on the paper thetype corresponding to the letter opposite such socket c.

To the ends of the letter-plate C, or to the horizontal arms b at itsends, are hinged or` pivoted armsD, having suitable ways, ,by

which the type-plate is guided and arranged to be slid parallel with theletter-plate and the .rows of letters and perforations c on the" same.The stylus F is formed or secured upon, and thus rigid with, thetype-plate E, and has forward a down-turned point, f,wh`ich is taperedso that it will easily enter the aforesaid tapering holes c, the sizesof the said-point and the said holes being so made thattheiinal'adjustment of the letter-type to a nicety in alignment will beeffected by the guiding of the said point by means of the tapering ofthe hole-c bring the type in printing contact. The

spring G, acting against the under lsideof the s arms D, keeps thetype-plate E ,noimallyl in a raised position, with the point f justabove and clear of the letter-plateabutton, g, serv.

ing to prevent the arms from being raised when the stylus is depressedfar enough to higher than necessary. When it is desired to throw thearms D back, so as to examine the under side of the type-plate, or forother purposes, the said button is swung aside clear of the arm D. Y Theletters of the type on the plate E are arranged in the reverse order tothose on the letter-plate, so that the letter A (which on the plate Obegins on the eXtreme right) on the type-plate begins at the extremeleft.

Underneath the type-plate is attached and supported in suitable cleats,e, (or other fastening which will prevent lateral movement,) a strip ofmetal, H, which plate has opposite the face of each letter-type aperforation, h,

ot' suitable size to allow thetype-face to pass through the saidperforation when making the impression, which impression is received bythe paper resting on the face or guide surface of the smallimpression-stud I, which is stationary upon the bottom platie, A. Theinkribbon i is interposed between the type-face and the said perforatedplate H, and held by them in position, as shown in Fig. 2. From thisconstruction it is evident that the ink on each point of the ribbonsupplies only the type directly opposite thereto, and thus will lastmuch longer than it would if not sliding with the type-plate. The plateH protects the paper from contact with the i nk-ribbon, except only atthe point where impression is made upon the stud I.

To move the paper (designated by the letter J) cross-wise to thetype-plate the desired distance between each two letters, and also toallow of moving it, in the same direction as the type-plate slides, thedistance required for the spacing between the lines, it is held betweena little metal strip, j, and the frictional surface of a roller, K, thesaid roller being pivoted in brackets 7a upon a sliding frame, L, andthe said metal strip (or wires) being fastened with its ends to the saidbrackets 7c. The near end of the roller K is provided with a knob, 7c',by marks on which and a corresponding mark on the nearest upright k, thedistance for the turning of the roller may be observed, so as to givethe correct desired spacing.

The frame L slides on ways Z upon the bedplate A, and is also providedwith oppositelyplaced uprights or studs m, formed on or attached towhich is a toothed rack, M, and in contact with the latter rests thefree end of a pawl, N, whose other end is pivoted to one of theaforesaid hinged arms D, as shown in Figs.v 1 and 3. By means of thesaid rack and pawl, the spacing between the letters of a word iseffected in such a manner that by each depression of the stylus F toprint the letter the pawl N, simultaneously with the said movement, willslide (by contact of the tooth with the rack N) the frame L, and therebythe paper J, forward the space of one tooth, (or more, according to thethrow of the arm D.) On the withdrawal of pressure the springs G raisethe arms D, and thereby the pawl N,

causing the latter to slide back the space of one tooth and contact withthe next. To print a figure upon the paper, it is thus only neces- 73sary to slide the stylus F in position with its pointin the hole copposite to the corresponding figure on the letter-plate C, and thendepress the stylus.

It will be observed that by the described construction of the supports Bthe paper J may be of any length without necessitating its folding orrolling, there being free space at each end of the -machine for thepaper to pass through, the rack M being elevated by its studs m suffi-Vciently above the frame L to allow the paper to pass between the saidrack and frame. The greatest width of paper that may be printed depends,of course, on the length of the horizontal reach b of the support Bandthelength of the feeding-roller K.

The letter-plate C may be the horizontal arm b itself, in which caseofcourse the downward branch b should descend directly from theright-hand end of theletter-plate, but as in this case the said uprightb would be a bar to the passage of the paper farther toward the right,the right end of the paper should be returned underneath the rollerK,and this would be feasible by attaching the impression-stud I upon ahorizontal bar elevated by end posts upon the bottom plate, A, andsliding frame L; but at present we prefer the construction shown in thedrawings.

It should be observed that the sliding frame L is provided with a slot,a, through which the impression-stud I projects, and which allows of thesliding motion of the frame L, which otherwise would be impeded by thestationary stud I.

We are aware of English PatentNo. 3,727, of 1882, and United StatesPatent No. 144,450, and make no claim to the construction shown thereinas forming a part of our invention.

Having thus described our invention, we claim as new and desire tosecure by Letters Patentl. The combination, with the base-plate A andthe letter-plate C, stationarily-mounted thereon, of bearings movablyconnected with said plate, and a type-plate, E, tted to slide parallelwith the said letter-plate and mounted on said movable bearings, astylus, F, upon the said'type-plate, an impression device, as I, andmeans, substantially as described,for feeding the paper the distancebetween the letters by the vertical movement of the type-plate, asdescribed.

2. The combination of a laterally-movable type-plate, E, carrying belowits type-surface a plate, H, perforated opposite the type-face of eachletter, and an ink-ribbon, i, interposed between the type-surface andthe said perforated plate,with a stationary impression-stud, I, andmeans, substantially as described, for moving the paper over the saidstud.

3. The combination of the laterally-movable type-plate E with thestationary impressionstud I, the slotted frame L, and mechanism,

ICO

IIO

substantially as shown and described, for movi 5. In a type-Writingmachine, a support, B,

consisting of an overhanging arm or reach with the letter-plate rigidlysecured upon the said arm, and having at one end adownward-projectingbranch, b, xedly secured to the bedplate or main support of the machine.

6. In a type-writing machine, the combination of a base-plate and aletter-plate fxedly mounted thereon, with atype-plate and bearing-forthe same moving. independent of the letter-plate and loosely connectedwith thebase-plate, and arranged to receive and guide said type-plate,substantially as described.

7. In atype-Writing machine, the combination of a stationaryletter-plate with a typeplate sliding parallel W ith saidletter-plate,aud pivoted arms provided with bearings for the saidtype-plate, whereby an equal leverage is maintained for the same and thearms carry the` minimum of Weight,substantially as described.

In testimony that we claim the foregoing as our invention We have signedour names, in presence of two witnesses, this 18th day of March, 1884. y

LEE S. BURRIDGE. NEWMAN R. MARSHMAN.

Witnesses:

Boer. W. MATTHEWS, A. W. ALMQvIsT.

